1628512888403 has 8 divisors (see below), whose sum is σ = 1629182645760. Its totient is φ = 1627843278600.

The previous prime is 1628512888367. The next prime is 1628512888411. The reversal of 1628512888403 is 3048882158261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1628512888403 is a prime.

It is a super-3 number, since 3×1628512888403³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1628512888423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25549988 + ... + 25613646.

It is an arithmetic number, because the mean of its divisors is an integer number (203647830720).

Almost surely, 2^{1628512888403} is an apocalyptic number.

1628512888403 is a deficient number, since it is larger than the sum of its proper divisors (669757357).

1628512888403 is an equidigital number, since it uses as much as digits as its factorization.

1628512888403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73777.

The product of its (nonzero) digits is 5898240, while the sum is 56.

The spelling of 1628512888403 in words is "one trillion, six hundred twenty-eight billion, five hundred twelve million, eight hundred eighty-eight thousand, four hundred three".